Biology, Pages 274-287Neil Campbell and Jane Reece's BIOLOGY remains unsurpassed as the most successful majors biology textbook in the world. This text has invited more than 4 million students into the study of this dynamic and essential discipline. |
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Page 44
... sex of flies was a key episode in the development of the chromosome theory of inheritance . In this section , we consider the role of sex chromosomes in inheritance in more detail . We begin by reviewing the chromosomal basis of sex ...
... sex of flies was a key episode in the development of the chromosome theory of inheritance . In this section , we consider the role of sex chromosomes in inheritance in more detail . We begin by reviewing the chromosomal basis of sex ...
Page 46
... chromosomes in males to pair and behave like homologous chromosomes during meiosis in the testes . Figure 15.9 Some chromosomal systems of sex determination . Numerals ... chromosome . In both testes and ovaries , the two sex chromosomes 46.
... chromosomes in males to pair and behave like homologous chromosomes during meiosis in the testes . Figure 15.9 Some chromosomal systems of sex determination . Numerals ... chromosome . In both testes and ovaries , the two sex chromosomes 46.
Page 47
... sex chromosomes segregate during meiosis , and each gamete receives one . Each ovum contains one X chromosome . In contrast , sperm fall into two categories : Half the sperm cells a male produces contain an X chromosome , and half ...
... sex chromosomes segregate during meiosis , and each gamete receives one . Each ovum contains one X chromosome . In contrast , sperm fall into two categories : Half the sperm cells a male produces contain an X chromosome , and half ...
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Common terms and phrases
Alterations of chromosome Barr body basis of recombination behavior of chromosomes body color characters Chromosomal Alterations chromosomal basis chromosome theory chromosomes during meiosis color and wing color blindness Concept Check crossover cytogenetic map deletion different chromosomes dihybrid dihybrid cross Drosophila embryonic eye color eyes in Drosophila F2 offspring Figure flies fly room frequency of recombination fruit fly gamete gamete receives Genes located genetic crosses geneticists genotype heterozygous homologous chromosomes homozygous humans inactivation independent assortment linkage map loci locus male fly mammal map units mated Mendel's laws Mendelian mitosis Morgan mutant allele nondisjunction nonhomologous chromosomes nonparental phenotypes nonsister chromatids normal ovum pair parental phenotypes phenotypic ratio physical basis polyploid protein Punnett square recessive allele recombinant chromosomes recombinant offspring recombination data recombination frequency recombination of linked red eyes segregation and independent sex chromosomes sex-linked disorder sex-linked trait specific gene Sturtevant tetraploid translocations white eyes wild-type allele X chromosome YyRr zygote